Beware the ‘sourdough effect’

As the joke goes, there are two ways to become a top judge. You can study law at university, then enter one of the Inns of Court as a trainee barrister, before embarking on a period of pupillage. If all goes well, you may be called to the bar. Play your cards right and you might take silk, and then as you reach your fifties, with a following wind, you may be invited to become a judge.